It's easy to underestimate the humble bathroom scale.

According to Digital Trends, today’s scales can measure everything from your body mass index to your bone mass.

With its connected apps and fitness trackers, the bathroom scale could be the central tool to help you reach your fitness goals.

For instance, the Fitbit Aria Smart Scale measures your weight, BMI, and body fat percentage.

And the Fitbit app can do almost everything, including track your weight, measure your step, and send you encouraging messages!

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